Overview
The SN74HC259DRE4 is an 8-bit addressable latch produced by Texas Instruments. This component is part of the 74HC series, known for its high-speed CMOS logic. It is designed for general-purpose storage applications in digital systems, offering a wide range of functionalities including working registers, serial-holding registers, and active-high decoders or demultiplexers.
The device features a multifunctional design, capable of storing single-line data in eight addressable latches and functioning as a 1-of-8 decoder or demultiplexer with active-high outputs. This versatility makes it a valuable component in various digital circuit designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2 V to 6 V | V |
| Maximum ICC (Power Consumption) | 80 μA | μA |
| Typical Propagation Delay (tpd) | 14 ns | ns |
| Output Drive at 5 V | ±4 mA | mA |
| Maximum Input Current | 1 μA | μA |
| Number of Bits | 8 | - |
| Package Type | SOIC-16 | - |
| Operating Temperature Range | -40°C to 85°C | °C |
Key Features
- Wide operating voltage range of 2 V to 6 V
- High-current inverting outputs drive up to 10 LSTTL loads
- Low power consumption, with a maximum ICC of 80 μA
- Typical propagation delay of 14 ns
- ±4-mA output drive at 5 V
- Low input current of 1 μA maximum
- 8-bit parallel-out storage register performs serial-to-parallel conversion with storage
- Asynchronous parallel clear
- Active-high decoder
- Enable input simplifies expansion
- Expandable for n-bit applications
- Four distinct functional modes
Applications
The SN74HC259DRE4 is suitable for a variety of applications in digital systems, including:
- General-purpose storage applications
- Working registers
- Serial-holding registers
- Active-high decoders or demultiplexers
- Digital circuit designs requiring addressable latches and decoding functions
Q & A
- What is the operating voltage range of the SN74HC259DRE4?
The operating voltage range is 2 V to 6 V.
- What is the maximum power consumption of the SN74HC259DRE4?
The maximum power consumption (ICC) is 80 μA.
- What is the typical propagation delay of the SN74HC259DRE4?
The typical propagation delay (tpd) is 14 ns.
- How many bits does the SN74HC259DRE4 have?
The SN74HC259DRE4 has 8 bits.
- What type of package does the SN74HC259DRE4 come in?
The SN74HC259DRE4 comes in a SOIC-16 package.
- What is the operating temperature range of the SN74HC259DRE4?
The operating temperature range is -40°C to 85°C.
- What are some common applications of the SN74HC259DRE4?
Common applications include general-purpose storage, working registers, serial-holding registers, and active-high decoders or demultiplexers.
- Can the SN74HC259DRE4 be expanded for n-bit applications?
- How many functional modes does the SN74HC259DRE4 have?
The SN74HC259DRE4 has four distinct functional modes.
- What is the maximum output drive current at 5 V?
The maximum output drive current at 5 V is ±4 mA.
